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9-Letter Words Ending with US

For word games needing US suffixes, here's your 9-letter word resource. Popular examples include ABOIDEAUS, ABOITEAUS, ACERVULUS, plus ACIDULOUS, AILANTHUS, ALUMINOUS and many more. Words ending in US often share similar meanings or grammatical forms.

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252 words

Word	Length	Syllables
aboideaus	9	3
aboiteaus	9	3
acervulus	9	4
acidulous	9	4
ailanthus	9	3
aluminous	9	4
ambiguous	9	3
ambitious	9	3
amorphous	9	3
amphioxus	9	3
analogous	9	4
anestrous	9	3
anhydrous	9	3
anilingus	9	4
anomalous	9	4
anonymous	9	4
antivirus	9	4
apetalous	9	4
apogamous	9	4
apparatus	9	4
arboreous	9	3
arbovirus	9	4
arsenious	9	3
asparagus	9	4
assiduous	9	3
atrocious	9	3
audacious	9	3
barbarous	9	3
beauteous	9	2
biogenous	9	3
bodacious	9	3
bonhomous	9	3
botulinus	9	4
bounteous	9	2
bumptious	9	2
calcaneus	9	3
calculous	9	3
calyculus	9	4
cancerous	9	3
cankerous	9	3
capacious	9	3
carcajous	9	3
cavernous	9	3
ceanothus	9	3
cetaceous	9	3
chancrous	9	2
chitinous	9	3
cinereous	9	3
clamorous	9	3
cobaltous	9	3
conceptus	9	3
congruous	9	2
conscious	9	2
consensus	9	3
cothurnus	9	3
coumarous	9	3
courteous	9	2
crapulous	9	3
credulous	9	3
cretinous	9	3
criminous	9	3
cutaneous	9	3
dangerous	9	3
deciduous	9	3
delicious	9	3
delirious	9	3
dentulous	9	3
dexterous	9	3
diclinous	9	3
diestrous	9	2
dioecious	9	2
dipterous	9	3
dissensus	9	3
echovirus	9	4
edematous	9	4
egregious	9	3
epigonous	9	4
epigynous	9	4
eponymous	9	4
erogenous	9	4
erroneous	9	3
esophagus	9	4
exogamous	9	4
exogenous	9	4
facetious	9	3
felonious	9	3
ferocious	9	3
fistulous	9	3
flambeaus	9	2
flocculus	9	3
fractious	9	2
frivolous	9	3
froufrous	9	2
fructuous	9	2
fugacious	9	3
fulgurous	9	3
funiculus	9	4
garrulous	9	3
gladiolus	9	3
glamorous	9	3
glutenous	9	3
glutinous	9	3
gummatous	9	3
harquebus	9	3
hausfraus	9	2
hazardous	9	3
hilarious	9	3
humongous	9	3
humungous	9	3
hypogeous	9	3
ignoramus	9	4
imperious	9	3
impetuous	9	3
incurious	9	3
ingenious	9	3
ingenuous	9	3
injurious	9	3
innocuous	9	3
insidious	9	3
invidious	9	3
isogamous	9	4
jiujitsus	9	3
jiujutsus	9	3
judicious	9	3
kabeljous	9	3
kinkajous	9	3
laborious	9	3
larcenous	9	3
lecherous	9	3
lemniscus	9	3
libellous	9	3
lichenous	9	3
literatus	9	4
litigious	9	3
longevous	9	3
lubricous	9	3
ludicrous	9	3
luxurious	9	3
malarious	9	3
malicious	9	3
malleolus	9	3
manganous	9	3
marvelous	9	3
meandrous	9	2
melodious	9	3
mercurous	9	3
metestrus	9	3
micaceous	9	3
momentous	9	3
monecious	9	3
monstrous	9	2
mundungus	9	3
murderous	9	3
murmurous	9	3
myoclonus	9	3
myomatous	9	3
myxovirus	9	4
narcissus	9	3
nectarous	9	3
nefarious	9	3
noncampus	9	3
nonporous	9	3
notorious	9	3
nucleolus	9	3
nunchakus	9	3
nystagmus	9	3
oblivious	9	3
obnoxious	9	3
officious	9	3
overfocus	9	4
oviparous	9	4
palladous	9	3
pemphigus	9	3
pendulous	9	3
penurious	9	3
peripatus	9	4
pirarucus	9	4
plenteous	9	2
poisonous	9	3
pomaceous	9	3
ponderous	9	3
priedieus	9	2
proestrus	9	2
pulvillus	9	3
pumiceous	9	3
querulous	9	3
rancorous	9	3
rapacious	9	3
rapturous	9	3
redivivus	9	4
religious	9	3
retiarius	9	3
righteous	9	2
rivalrous	9	3
rosaceous	9	3
rotavirus	9	4
rousseaus	9	2
sagacious	9	3
salacious	9	3
saleratus	9	4
saphenous	9	3
sartorius	9	3
scirrhous	9	2
sebaceous	9	3
seditious	9	3
sericeous	9	3
setaceous	9	3
sextarius	9	3
siliceous	9	3
silicious	9	3
slumbrous	9	2
sorcerous	9	3
sphagnous	9	2
spiritous	9	3
strenuous	9	2
strobilus	9	3
stuporous	9	3
sulfurous	9	3
sumptuous	9	2
susurrous	9	3
tenacious	9	3
tendinous	9	3
tenebrous	9	3
thesaurus	9	3
tiramisus	9	4
torturous	9	3
trapezius	9	3
tremulous	9	3
trimerous	9	3
trochilus	9	3
troublous	9	2
tufaceous	9	3
tyrannous	9	3
umbilicus	9	4
unanimous	9	4
uncurious	9	3
unenvious	9	3
unserious	9	3
untimeous	9	3
utriculus	9	4
vagarious	9	3
venturous	9	3
veracious	9	3
verdurous	9	3
verminous	9	3
vexatious	9	3
vicarious	9	3
vinaceous	9	3
vivacious	9	3
voracious	9	3
vulturous	9	3
williwaus	9	3

FAQs

What’s typical about US-ending words?
US often marks suffix families; think about derivatives when guessing.

Do you include UK/US spellings?
Where they exist, both may appear.